The liturgical life of the Catholic Church revolves around the Eucharistic sacrifice and the sacraments. There are seven sacraments in the Church, generally grouped as such: Sacraments of Itiniation - Baptism, Eucharist, and Confirmation
Sacraments of Healing - Reconciliation and Anointing of the Sick
Sacraments of Vocation - Matrimony and Holy Orders
The purpose of the sacraments is to make people holy, to build up the body of Christ, and finally, to give worship to God; but being signs, they also have a teaching function. They not only presuppose faith, but by words and object, they also nourish, strengthen, and express it; that is why they are called "sacraments of faith." The sacraments impart grace, but, in addition, the very act of celebrating them disposes the faithful most effectively to receive this grace in a fruitful manner, to worship God rightly, and to practice charity.
Worship is integral to our lives as Christians. When we engage in the prayer and ritual of the Church, we are formed as Church. Our sacramental rites are of primary importance while we are gathered.
What are the effects of the sacraments? They are the signs of Christ's work; the effectiveness of Christ's continuing work in his Church cannot be dependent on man's inadequacy. A sacrament, administered properly in the way established by Christ and with the proper intention, gives the grace it signifies. It is effective not by reason of the power of intercession of priestly prayer nor on account of the worthiness of the recipient, but solely by the power of Christ. The power of Christ lives in the sacraments.